Band-wheel grinder.



P. A. GAZES. BAND WHEEL GRINDER.

APPLICATION FILED IAB. 'I, 1 907. 904,509.

Patented Nov. 24, 1908.

P. A. GAZES. BAND WHEEL GRINDER.

' APPLICATION FILED-1MB. 7, 1907, 904,509. Patented Nov. 24, 1908.

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P. A. GAZES. BAND WHEEL GRINDER.

4 APPLICATION FILED MAR. 7. 1907. I 904,509, I I Patented Nov. 24, 1908.

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PETER ARTHUR CAZES, OF BATON ROUGE, LOUISIANA.

BAND-WI-IEEL GRINDER.

Specification of Letters Patent.

Patented Nov. 24:, 1908.

Application filed March '7, 1907. Serial No. 361,057.

To all whom it may concern:

Be it known that 1, PETER A. CAzns, a citizen of the United States, residing at Baton Rouge, in the parish of East Baton Rouge and State of Louisiana, have invented a. new and useful Improvement in BandlVheel Grinders, of which the following is a specification.

This invention relates to band wheel grinders for grinding the surface of the band wheel true, after they have become worn uneven by the band saw passing over the same, the object being to provide a grinder which can be easily and quickly attached to the ordinary sawing machine now in use, and one which can be swung into contact with either band wheel so as to grind the surface of the wheel perfectly true in a very short time.

Another object of my invention is to provide very novel means for driving the emery wheel back and forth over the wheel.

A further object of my invention is to provide the grinder with adjusting means so that the emery wheel can be quickly adjusted so as to bring it into contact with the band wheel at the desired point.

With these and other objects in view, the invention consists in the novel features of construction, combination and arrangement of parts hereinafter fully described and pointed out in the claims.

In the drawings forming a part of this specificationz-Figure 1 is a perspective view of my improved band wheel grinder showing the application of the same. Fig. 2 is a perspective view of the same showing the grinder thrown out of engagement with the band wheel. Fig. 3 is a top plan view of the grinder detached. Fig. 4: is a side elevational view of the same, and Fig. 5 is a longitudinal sectional view through one of the side members of the frame of the grinder.

Referring to the drawings A indicates the frame of a band sawing machine, and B and C the band wheels over which the saw travels.

Secured to the frame between the wheels is a plate D, provided with guideways in which are adjustably mounted brackets D, provided with bearings at their ends, in which is mounted a shaft E on one end of which is secured a pulley E over which passes a drive-belt E for rotating the shaft. Mounted on the shaft to each side of the brackets is a frame formed of split bearing sleeves F secured together by set-bolts and provided with lubricators so that the shaft can rotate freely thereon. Threaded sockets F extend out from the sleeves in which are secured the threaded ends of tubes F in which are slidably mounted bars F which are secured therein by set-screws carried by threaded sleeves F secured on the threaded outer ends of the tubes, so that the bars can be readily adjusted in the tubes as desired. Secured on the outer ends of the bars F are the sockets of forked members G, by setscrews working through threaded bores formed in the sides of the sockets. The forks of the member G are provided with vertical threaded bores inwhich are mounted pointed bolts provided with set-nuts, adapted to fit in recesses in split bearing sleeves H, provided with lubricators arranged in the forks in which is mounted a shaft H, on which is secured an emery wheel I carrying a pulley I. The sleeves are provided with apertured lugs in which are mounted bolts which securely lock the sleeves together, over the shaft. Apertured threaded lugs are formed on the sockets of the members G, in which are mounted adjustable bolts which bear against the lugs of sleeves G secured on the bars by set-screws so that the members can be adjusted on the bars when desired, as will be hereinafter fully described.

Secured on the tubes F by set-screws, are sleeves J provided with bearings J, J carrying lubricators and provided with spaced slots J J*. The sleeves are provided with upwardly projecting lugs adapted to be engaged by adjusting-screws mounted in threaded lugs formed on the end of the socket F, so that they can be readily adjusted for the purpose hereinafter fully described. Mounted in the bearings J", is a shaft K provided with fixed pulleys K K and loose pulleys K K over which pass the cross-belts L, and straight belts L carried by a pulley L, secured on the shaft E. The belts pass over the grooved belt-shifters M, M secured on a square bar M, by setscrews which are slidably mounted in the slots J of the sleeves J, to which is secured a duplicate bar N, which is mounted in the slot J the two bars being secured in the slots by locking plates secured over the same by set-screws. The bar N has spaced blocks N, N secured thereon by set-screws which are provided with coiled springs surrounding the bar adapted to be engaged by an arm P of a nut P which is mounted on a threaded portion K of the bar K, for shifting the belts from the fixed pulleys to the loose pulleys, as will be hereinafter fully described.

The nut P is provided with an oppositely disposed arm P having a split sleeve on its end, which is clamped on a bar Q, by a bolt, the bar being slidably mounted in the bearing J, of the sleeve J. A split sleeve R is clamped on the bar Q provided with an arm R which extends forward between the emery wheel, and pulleys adapted to draw the emery wheel back and forth as the bar Q, is moved by the nut P traveling on the threaded portion K of the shaft K.

A loose pulley S and a drive-pulley S is mounted on the shaft E, carrying a belt T, which passes over the pulley I for driving the emery wheel, and it will be readily seen that as the wheel travels back and forth, the belt will slide back and forth on the pullev S.

Forked brackets U are secured on the end of the lower forked portion of the member G in which are adjustably secured socketscrews in which are mounted balls U provided with threaded bores in which work threaded adjusting screws V, to the upper end of which are secured sockets in which are secured bars V provided with eyes V at their ends, which work in slotted arms V mounted .on the frame of the machine, so that the emery wheel can be swung into engagement with either one of the band wheels as desired.

The operation of the device is as follows: The power belt is started which drives the emery wheel through the medium of the drive pulley, and belt and at the same time the threaded shaft is rotated through the medium of the belts, and as the arm of the nut on the threaded shaft strikes the spring on the lock, it will draw the bar over and shift the belts so that the shaft will be reversed which will carry the emery wheel back until the arm strikes the opposite block which will shift the belts and cause the shaft to be reversed, thereby causing the emery wheel to travel back and forth over the surface of the band wheel as it is revolved.

fixed pulleys mounted on the threaded shaft,

oppositely arranged belts running over said pulleys, belt shifting means carried by one of the bars, adjustable blocks secured upon the other bar and upon opposite sides of one of the arms carried by the nut, and means operable by the other arm of the nut for sliding the grinding wheel.

2. A device of the kind described comprising a pivotally mounted frame, said frame comprising sectional side members,

one section of each side sliding in the other, a shaft carried by the sliding member, a grinding wheel mounted on said shaft and slidable along the shaft, bars carried by said slidable side member sections, belt shifters carried by one of said bars, blocks carried by the other bar, said bars being connected together and being slidably mounted, a rotatable threaded shaft carried by said side members, a nut having oppositely extending arms, said nut traveling along the threaded shaft, loose and fixed pulleys mounted on the threaded shaft, oppositely arranged belts running over said pulleys, said belts being drawn into and out of operation by the belt shifters, one of the arms of the nuts extending between the blocks and springs above mentioned, a longitudinally slidable bar carried by the side members of the frame, the other arm of the nut being v" secured to said bar, and means carried by said bar for sliding the grinding wheel along 1ts shaft.

PETER ARTHUR CAZES.

lVitnesses J. T. YOUNG, M. F. BANGS. 

